Quad Sylvania6sn7 gtb tall glassQuad Sylvania 6sn7 gtb tall glass platinum matched****** TUBES WERE TESTED TWICE,1) NO SHORTS,NO GAS AND TRANSCONDUCTANCE WHERE 1640/1640 uSIEMENS IS THE MINIMUM VALUE FOR 6SN7 USING HICKOK TUBE TESTER & 2) AUDIO TESTED NO HUM,VERY LOW NOISE A...155.00

Quad Sylvania 6sn7 gtb tall glass platinum matched [Expired]


no longer for sale

****** TUBES WERE TESTED TWICE,1) NO SHORTS,NO GAS AND TRANSCONDUCTANCE WHERE 1640/1640 uSIEMENS IS THE MINIMUM VALUE FOR 6SN7 USING HICKOK TUBE TESTER & 2) AUDIO TESTED NO HUM,VERY LOW NOISE AND NON-MICROPHONICS ON A MODIFIED DYNACO PAS.PLATIMUM MATCHED TUBES(WELL-BALANCED TRIODES IN TRANSCONDUCTANCE AND PLATE CURRENT)

******PLATINUM MATCHED QUAD SYLVANIA 6SN7GTA,TALL GLASS,SAME DATE CODE,SHIP IN WHITE BULK BOX,US MADE TUBES,VERY CLEAN PINS,HAVING
TUBE1)2800/2900uS & 6.8/6.9ma
TUBE2)2950/2950uS & 6.8/6.9ma
TUBE3)2950/3000us & 6.8/6.9ma
TUBE4)2900/3000uSIEMENS & 6.6/7.1 ma PLATE CURRENT
FIVE PLATINUM MATCHED QUADS AVAILABLE.

>>>>>QUESTIONS ARE ALWAYS WELCOME.NOTE;WITHOUT TEST DATA/RESULTS IS BLINDFOLD BUYING & AD THAT SAY'S"test good" or "test strong"in vacuum tubes is not enough.

******FREE SHIPPING WITH TRACKING# WITHIN USA.NO PAYPAL FEES.TUBES ARE GUARANTEED FOR 7 DAYS UPON ARRIVAL.

QUESTIONS ARE ALWAYS WELCOME THRU kablemetal at gmail dot com.
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